This study's basic purpose was to examine the effects of library professionals' communication skills on workplace productivity. The survey method was adopted and used a self-developed questionnaire as a data collection tool. The questionnaires were administered to LIS professionals were working in central libraries of universities and degree-awarding institutions in Punjab and Islamabad the capital of Pakistan. The response rate was 83%. To analyse data used SPSS and applied different descriptive and inferential statistics. The findings argued that librarians have a high level of communication skills and there is no significant difference in communication skills level concerning their demographic characteristics. The study dug out a significant relationship between the independent variable communication skills and the dependent variable work productivity. Communication skills help library professionals enhance their work performance, service provision, build healthy relationships with library patrons and colleagues, and help reference librarians meet users' information needs. Results of this research work persuade library leaders, organisational management, decision makers, and professional development program organising agencies to put attentions on developing or honing the communication skills of employees.